Abgasturboladerturbine

摘要

The invention relates to an exhaust gas turbocharger turbine of an internal combustion engine which comprises a spiral guiding channel arranged in a turbine housing (4), a turbine wheel, a flow gap (3) situated between said guiding channel and the turbine wheel, and guide blades which form a guide vane. The guide vane (10) with the guide blades (9) axially projects outward from a support (8) in such a way that they are accommodated in recesses of a housing wall part (11a) of the turbine housing during normal operation. Said support is arranged in an axial direction in the turbine housing such that it can be displaced. Said recesses, in the form of a matrix, construct a counter profile to the guide blades. During braking of the internal combustion engine, the guide blades project into the flow gap when the support is axially displaced. The device comprising actuating elements (17-23) provided for braking can be integrated as a complete module in the turbine spirals.